Gearing.



ALT. BROWN.

GEARING.

APPLICATION FILED JAN. 6, I910.

Patented May 22, 1917.

QSHEETS-SHEET 1.

WITNESSES: A

A T702411; Ys

A. T. BROWN.

(BEARING. APPLICATlON FILED JAN-6.1910.

Patented May 22,1917. v

3 SHEETS-SHEET 2-" ENTER.

1 I n 1 I H [I hm M H Hill) I H: H1 II N m MN ,WII. mN N NESSE IGEARING.

APPLICATION man mm. 1910.

Patented May 22, 1917.

- 3 SHEETS-SHEET 3.

A TTORNE Ys.

parts seen in ALEXANDER 1'. BROWN, or srnncusngm w comriuw, on SYRACUSE,NEW YORK,

a CORPORATIONDF NEW YORK.

Guanine,-

To all whom it may concern:

Be it known that I,- ALEXANDER T. BROWN, of Syracuse, in the county ofOnondaga and State of New York, have invented a certain new and usefulGearing, of which the following is a specification.

My invention has for its object a changeable speed gearing whichisparticularly simple, eflicient and durable; and itconsists in thecombinations and structures here inafter set forth and claimed;

In describing this invention, reference is had to the accompanyingdrawings in which like characters designate correspondingparts in alltheviews; p i

Figure 1 is a vertical section, partly m elevation, of my" gearing. r

Fig. 2 is a plan, partly in section, of

Fig. 1, the cover; being removed. I v I Fig. 3 is an end elevation,partly in section, of my gearing.

1 is the case or supporting frame provided with a removablecover or part2' and with means for supporting three hearings in axial alinement.Preferably, the case is formed with integral opposing walls3, at havingaxially alined openings therein, and with an integral support 5 locatedintermediate of the walls 3, 4, the openings in the walls 3, 4 beingclosed by caps 6, 7. supporting axially alined' antifriction bearings,and the support 5 being provided withgga transverse opening containingan antifriction bearing axially alined with the former bearings.

8 is a shaft journaled in the outer hearing supported by the endwall 3and pro jecting toward the intermediate' 'bearing carried by the support5, and 9fli's a; shaft journaled in the outer bearing euppprted by theend wall 4 and in said intermediatebearing carried by the support -5, itand projecting beyond the support 5 and meeting the shaft 8 between theend wall 3 and said support. Usually, the shaft 9 is driven" and theshaft 8 serves as a driver beingv connected toa motor by apower-transmitt1ng coupling 10, but this order may be reversed.

The antifriction bearings carried by the end walls 3, 4 and the support5 may be of any desirable form, size and cgmstruction, but as hereillustrated, comprise outer rings 11 secured to the caps 6, ,7 and theinner face of the transverse opening in the support 5, inner rings 12mounted on the shafts 8,

end face of the outer ring 11 of the inter-' YQRK, ASSIGNOR TOBROWN-LIFE GEAR Specification of Letters Patent. Patgnted May 22, 1917,Application filed January 6, 1910. serial No. 536,602. 4

mediate. antifriction bearing engages-an internal annular shoulder 14rovided in the bearing receiving opening of the support 5, and theopposite face of the. inner ringjof said bearing coacts with an annularshoulder 15 formed on the shaft ,9. Asinthe illustrated exemplificationof my invention, the

portion of the shaft 9 within theainnerring.

12 is non-circular, a collar 16 is fitted. on said shaft collar havingan annular flange which extends between said ring 12 and the shoulder15. The outer antifriction bearings may be held in position by similarshoulders prowithin the inner ring 12, thevided on-the contiguoussurfaces of. the caps 6, 7 and the shafts 8, 9. As here illustrated, thecap 6'is provided with an outward extension 17 which supports anadditional anti-friction bearing for the shaft 8, such bearing beingsimilar in construction to the former bearings. however, that thisadditional bearing, for the shaft 8 may be dispensed with, if desired. 7

As here illustrated the connections be tween the shafts 8 and 9 comprisea shaft 18 extending" parallel to the shafts 8 and 9 and journaled atits ends in bearings carried by the end walls 3 and 4 of the case; agear 19 revoluble with. the shaft 8 and normally located near thebearing of the wall 3 for supporting said shaft, the inner portion ofthe gear 19 constituting a clutch member; a gear 20 fixed on the shaft18 It will be understood,

and permanently meshing with the gear 19, the gear 20 being located nearthe plane of the bearing of the wall 3 for supporting the shaft 8; gears21 and 22 fixed to the shaft 18 and arranged at opposite sides of thebearing support 5; a gear: 23 fixed to the shaft 18 and located near theplane of the bearing. of the wall 4 for supporting the shaft 9; a gear2'4 constantly meshing with the gear 23; an internal clutch member 25arranged between the Wall 3 and the bearing support 5 upon the end ofthe shaft 9 projecting beyond the support, said clutch member beingrevoluble with the shaft 9 and movable axially relatively thereto intoand out of engagement with the"c1ut,ch member formed by the innerportion of the gear 19; a gear 26 fixed to the clutch mein; -1n

,constitnting a second shiftable element and b ing movable into and outof engagement with the gears 22 and 24-. To facilitate the axialmovement of the clutch member and the gears 26 and 27, the shaft 9 andthe shaft-receiving openings in said clutch member and gears are formedangular in cross section.

The intermediate bearing for supporting the driven shaft 9 and theshiftable actuating elements for such shaft arranged on opposite sidesof the intermediate bearing and its support provide a particularlystrong and durable structure which greatly augments the life andeflicienc-v of my gearing. It will be understood, however, that althoughthe described connections between the shafts S and 9 are particularlydesirable and suitable for-use,with the intern'iediatWbeaI-ing of mygearing and the shiftable elements on opposite sides of the plane ofsuch bearing, other means may be used for connecting the shaft 8 to theshiftablc elements of this gearing and one or both of said shift-ableelements may be mounted upon the shaft 18'instoad of the shaft 9.

The axial movement of the clutch member 25 and the gears 26 and 27 isprefer-.

ably effected by shifters 28, 29, and suitable means, as a rock arm 30,which coacts at its free end with sockets 31, 32 in opposing faces ofthe shifters and is carried by an axiallyniovable rock shaft 33 and ismoved by said rock shaft lengthwise of the axis thereof \to engage thepredetermined shifter and is then moved about such axis for actuatingthe shifter, this arm 30 being guided in its movement by a bearing plate34 fixed tothe case 1. The means for actuating ithe shifters forms nopart of my.

present invention, and hence further description thereof is deemedunnecessary.

The shifter 28 is mounted on a fixed guide rod 35 having its oppositeeiids supported by the wall 3 and the intermediate bearing support 5,and the shifter 29 is mounted on a fixed guide rod 36 having its endssupported by the opposing Walls 3,

4. Said shifters are provided with forks 3T, 38 for engaging theshiftable elements on the shaft 9 and are also provided with barrels 39,40 for containing spring pressed pawls 41, 42 having. their lower endsengaged with recesses formed in the contiguous surfaces of the guiderods 35, 36. When one of the shifters is being actuated, the other isheld in its neutral position by any suitable locking member 43, Figs. 2and 3, which forms no part of my present invention. By carrying one endof the guide rod 35 in the bearing support 5, this rod is shorter thanwould otherwise be possible, there is no necessity for crooking ordeflecting a part of the fork of the shifter 29 to avoid contact withsaid rod, and alarger gear 27' may be used than would "otherwise bepossible.

hat I claim is In a change speed gearing and in combination, a casinghaving alined bearings in opposing walls thereof, an intermediatebearing between the former bearings and alined therewith, driving anddriven shafts, one of said shafts being journaled in the bearing in oneof said opposing walls, and the other of said shafts being journaled inthe bearing in the other of said opposing walls and in the intermediatebearing and projecting beyond the intermediate hearing toward the formershaft, the opposing ends of the shafts being unsupported by each other,the casing being also formed with additioiml alincd bearings in saidopposing walls thcreof, a countershaft journaled in the additionalbearings, gears mounted on the shafts, some of the gears being fixed andthe others being slidable, some of the fixed gears being located nearthe bearings of the casing and others of I In testimony whereof, I havehereunto signed my name in the presence of two attesting witnesses, atSyracuse, in the county of Onondaga, in the State of New York, this 28thday of December, 1909.

A REX A NDER T. BROVN.

itncsses:

S. DAVIS, I K. SUAHLLER.

